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TSL2591

TSL2591

ams
High dynamic-range ambient light sensor commonly used in consumer and industrial applications.
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Overview

The TSL2591 is a very high dynamic range light-to-digital converter that transforms light intensity into a digital signal output capable of direct I2C interface. It features a dual-diode architecture, with one photodiode sensitive to visible and infrared light and a second sensitive only to infrared light, allowing for accurate ambient light sensing under varying lighting conditions.

Why Choose This Part

The device offers an impressive 600M:1 dynamic range and programmable integration times, making it effective in environments ranging from pitch dark to bright sunlight. Its low typical operating current of 0.275mA and 2.3uA sleep mode make it ideal for battery-powered applications.

Applications

Display Backlight Control
Adjusting screen brightness in mobile devices and monitors based on ambient lighting to improve readability and save power.
Smart Lighting Systems
Automating indoor or outdoor lighting levels for energy efficiency in smart home and commercial building environments.
Industrial Process Control
Monitoring light levels in manufacturing environments where high dynamic range is required to handle rapid shifts in illumination.
Solid State Lighting
Feedback control for LED luminaires to maintain consistent light output over the life of the product.

Key Specifications

Type Ambient
Output Type I2C
Mounting Type Surface Mount
Package / Case 6-WFDFN
Voltage - Supply 2.7V ~ 3.6V
Proximity Detection No
Operating Temperature -30degC ~ 70degC
Supplier Device Package 6-DFN (2x2.2)

Getting Started

To begin development, connect the TSL2591 to an I2C bus with pull-up resistors and provide a supply voltage between 2.7V and 3.6V. Evaluation is often performed using the Adafruit TSL2591 High Dynamic Range Digital Light Sensor breakout board, which simplifies prototyping with available Arduino and Python libraries.

TSL2591 Family

Part NumberDifferenceStock
TSL2591FN (ams / ams-TAOS) FN —

Also Consider

OPT3001 TITexas Instruments - Features a spectral response that closely matches the human eye for high-precision lux measurements.
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